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-rw-r--r--source/com/c2kernel/process/ModuleManager.java81
1 files changed, 81 insertions, 0 deletions
diff --git a/source/com/c2kernel/process/ModuleManager.java b/source/com/c2kernel/process/ModuleManager.java
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+++ b/source/com/c2kernel/process/ModuleManager.java
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+package com.c2kernel.process;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.Properties;
+
+import com.c2kernel.common.ObjectNotFoundException;
+import com.c2kernel.entity.proxy.ItemProxy;
+import com.c2kernel.lookup.DomainPath;
+import com.c2kernel.utils.FileStringUtility;
+import com.c2kernel.utils.Logger;
+
+public class ModuleManager {
+ ArrayList<Module> modules = new ArrayList<Module>();
+ Properties props = new Properties();
+ boolean isServer;
+
+ public ModuleManager(Enumeration<URL> moduleEnum, boolean isServer) {
+ this.isServer = isServer;
+ ArrayList<String> loadedModules = new ArrayList<String>();
+ while(moduleEnum.hasMoreElements()) {
+ URL newModuleURL = moduleEnum.nextElement();
+ try {
+ Module newModule = new Module(FileStringUtility.url2String(newModuleURL));
+ modules.add(newModule);
+ loadedModules.add(newModule.getName());
+ Properties modProp = isServer?newModule.getServerProperties():newModule.getClientProperties();
+ for (Enumeration<?> e = modProp.propertyNames(); e.hasMoreElements();) {
+ String propName = (String)e.nextElement();
+ props.put(propName, modProp.get(propName));
+ }
+ } catch (Exception e) {
+ Logger.error("Could not load module description from "+newModuleURL);
+ Logger.error(e);
+ }
+ }
+
+ Logger.debug(5, "Checking dependencies");
+ boolean depFailed = false;
+ for (Module thisMod : modules) {
+ ArrayList<String> deps = thisMod.getDependencies();
+ for (String dep : deps) {
+ if (!loadedModules.contains(dep)) {
+ Logger.error("UNMET MODULE DEPENDENCY: "+thisMod.getName()+" requires "+dep);
+ depFailed = true;
+ }
+ }
+ }
+ if (depFailed) Logger.die("Unmet module dependencies. Cannot continue");
+ }
+
+ public String getModuleVersions() {
+ StringBuffer ver = new StringBuffer();
+ for (Module thisMod : modules) {
+ if (ver.length()>0) ver.append(";");
+ ver.append(thisMod.getName()+"("+thisMod.getVersion()+")");
+ }
+ return ver.toString();
+ }
+
+
+ public Properties getAllModuleProperties() {
+ return props;
+ }
+
+ public void runScripts(String event) {
+ for (Module thisMod : modules) {
+ thisMod.runScript(event, isServer);
+ }
+ }
+
+ public void registerModules() throws ObjectNotFoundException {
+ ItemProxy serverEntity = (ItemProxy)Gateway.getProxyManager().getProxy(new DomainPath("/servers/"+Gateway.getProperty("ItemServer.name")));
+ Logger.debug(3, "Registering modules");
+ for (Module thisMod : modules) {
+ Logger.debug(4, "Registering module "+thisMod.getName());
+ thisMod.importAll(serverEntity);
+ }
+ }
+}